1. Legs not properly shaved.
2. Shins not properly bleeding/scarred from unintended contact with sharp non-retentive platform pedal pins.
3. Below 70-deg, knees not properly covered.
4. JBL sucks. (Note, this is totally Jokey McJokester, I have no stance in audio wars.)
Well the JBL only sucks for others if their not classic rock fans but you are partly correct, I have not gotten the service from them I would like, so it goes.
Plenty of scars not seen in the pics and never raced or shaved so.....
I typically ride shorts down to about 40+, knees, legs and feet seem to do just fine if the head and hands are good.